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Peter, you can do all of these without using mult occurs data structures - you might be confusing that with simple single level externally described DS's. rick -----original message------- External definitions of the subfields? For keeping before/after images of a record; you can use based DS's with prefixes to directly compare fields in different occurrences. Peter Dow Dow Software Services, Inc. 909 793-9050 voice 909 522-3214 cellular 909 793-4480 fax
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